Removal of Azo Dyes - Tartrazine, Carmoisine, and Allura Red - from Wastewater using Spirulina Biomass-Immobilized Alginate Beads: Equilibrium, Kinetics, Thermodynamics, Desorption, and Reusability
| dc.contributor.author | Sahin, Oya Irmak | |
| dc.date.accessioned | 2022-03-03T10:58:02Z | |
| dc.date.available | 2022-03-03T10:58:02Z | |
| dc.date.issued | 2021-04 | |
| dc.description.abstract | In the present study, Spirulina microalgae-immobilized alginate beads (Alg-SP) were used as novel adsorbents for the adsorption of tartrazine, carmoisine, and Allura Red azo-dyes from wastewater. Synthesized Alg-SP beads were characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, thermogravimetric analysis, and differential scanning calorimetry analyses. Maximum azo-dye removal percentages were achieved using 100 mg of Alg-SP beads with a ratio of 3.0%(w/v) within 2 h, and tartrazine, carmoisine, and Allura Red removal performances were determined to be 98%, 93%, and 82%, respectively. The adsorption data for azo-dyes onto Alg-SP beads were evaluated by several isotherm equations such as Langmuir, Freundlich, Dubinin–Radushkevich, Temkin, Halsey, and Harkins–Jura isotherm models, but were best described by the Langmuir and Harkins–Jura models as they gave the highest correlation. Pseudo-first-order, pseudo-second-order, Elovich, Weber–Morris, and Bangham models were investigated and dye adsorption onto Alg-SP beads was represented by pseudo-second-order and Elovich kinetic models. After the adsorption process, the beads can easily be regenerated by NaOH and effectively reused over three cycles. Consequently, Spirulina microalgae-immobilized alginate beads have considerable potential for the adsorption of dyes from wastewater. | tr_TR |
| dc.identifier.uri | https://dx.doi.org/10.5004/dwt.2021.27010 | |
| dc.identifier.uri | http://dspace.yalova.edu.tr/handle/1/252 | |
| dc.language.iso | en | tr_TR |
| dc.publisher | Desalination and Water Treatment | tr_TR |
| dc.title | Removal of Azo Dyes - Tartrazine, Carmoisine, and Allura Red - from Wastewater using Spirulina Biomass-Immobilized Alginate Beads: Equilibrium, Kinetics, Thermodynamics, Desorption, and Reusability | tr_TR |
| dc.type | Article | tr_TR |